EP 0801598 B1 20000126 - METHOD OF ELECTROCHEMICALLY MACHINING WORKPIECES
Title (en)
METHOD OF ELECTROCHEMICALLY MACHINING WORKPIECES
Title (de)
VERFAHREN ZUM ELEKTROCHEMISCHEN BEARBEITEN VON WERKSTÜCKEN
Title (fr)
PROCEDE D'USINAGE ELECTROCHIMIQUE DE PIECES
Publication
Application
Priority
- EP 96933582 A 19961025
- EP 95203032 A 19951108
- IB 9601150 W 19961025
Abstract (en)
[origin: WO9717158A2] The invention relates to a method of providing one or more through-holes in a metal workpiece by means of an electrochemical machining apparatus (ECM apparatus). Said method is characterized in that the surface of the workpiece from which the electrode of the ECM apparatus emerges is provided with an auxiliary layer, which comprises a polymeric network composed of organic and inorganic fragments. In this manner, rounding at the boundary between the holes formed and the exit surface of the ECM electrode is precluded. A polymeric network comprising silicon oxide and zirconium oxide as well as carbon-containing fragments, which are incorporated in the polymeric network via SiC bonds, proved to be very favorable. The invention can very advantageously be used to manufacture shaving foils and shaving combs.
IPC 1-7
IPC 8 full level
B23H 3/00 (2006.01); B23H 7/00 (2006.01); B23H 9/00 (2006.01); B23H 9/14 (2006.01); B23H 9/16 (2006.01); B26B 21/54 (2006.01)
CPC (source: EP US)
B23H 3/00 (2013.01 - EP US); B23H 9/00 (2013.01 - EP US); B23H 9/16 (2013.01 - EP US); B26B 21/54 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI
DOCDB simple family (publication)
WO 9717158 A2 19970515; WO 9717158 A3 19970612; DE 69606388 D1 20000302; DE 69606388 T2 20000824; EP 0801598 A2 19971022; EP 0801598 B1 20000126; JP H10512504 A 19981202; RU 2169645 C2 20010627; US 5738777 A 19980414
DOCDB simple family (application)
IB 9601150 W 19961025; DE 69606388 T 19961025; EP 96933582 A 19961025; JP 51800897 A 19961025; RU 97113754 A 19961025; US 74576096 A 19961108